Home / 11,931.52-17,870.02-5,695.92

Finding the Fourth Proportional to 11,931.52, 17,870.02 and 5,695.92

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Solution

The fourth proportional to 11,931.52, 17,870.02 and 5,695.92 is: 8,530.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,931.52 : 17,870.02 = 5,695.92 : x
  2. Step 2: Convert to fraction form
    11,931.52/17,870.02 = 5,695.92/x
  3. Step 3: Cross multiply
    11,931.52x = 17,870.02 × 5,695.92
  4. Step 4: Simplify right side
    11,931.52x = 101,786,204.32
  5. Step 5: Solve for x
    x = 101,786,204.32/11,931.52
  6. Step 6: Final answer
    x = 8,530.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.